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Examples/Arduboy-Tutorials/eeprom/src/lib.rs

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+#![no_std]
+#![allow(non_upper_case_globals)]
+//Include the Arduboy Library
+//Initialize the arduboy object
+#[allow(unused_imports)]
+use arduboy_rust::prelude::*;
+
+// #[link_section = ".progmem.data"]
+
+// Setup eeprom memory
+static mut eeprom: EEPROM = EEPROM::new(10);
+
+static mut count: u8 = 0;
+static mut MEM: u8 = 0;
+
+// The setup() function runs once when you turn your Arduboy on
+#[no_mangle]
+pub unsafe extern "C" fn setup() {
+    // put your setup code here, to run once:
+    arduboy.begin();
+    eeprom.init();
+    arduboy.clear();
+    arduboy.set_frame_rate(30);
+}
+// The loop() function repeats forever after setup() is done
+#[no_mangle]
+#[export_name = "loop"]
+pub unsafe extern "C" fn loop_() {
+    // put your main code here, to run repeatedly:
+    if !arduboy.next_frame() {
+        return;
+    }
+    arduboy.clear();
+    arduboy.poll_buttons();
+    if arduboy.just_pressed(UP) {
+        count += 1;
+    }
+    if arduboy.just_pressed(DOWN) {
+        count -= 1;
+    }
+    if arduboy.just_pressed(A) {
+        unsafe { eeprom.put(count) }
+    }
+    if arduboy.just_pressed(B) {
+        eeprom.get(&mut MEM)
+    }
+    arduboy.set_cursor(0, 0);
+    arduboy.print(count as u16);
+
+    arduboy.set_cursor(0, 30);
+    arduboy.print("Memory:\0");
+    arduboy.print(MEM as u16);
+    arduboy.set_cursor(0, 40);
+    arduboy.print("eeprom:\0");
+
+    arduboy.print(eeprom.read() as u16);
+
+    arduboy.display();
+}